A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6130-01-415-5978
NSN 5895-01-588-0808
NSN 6620-00-155-2608
NSN 5835-00-055-0953
NSN 6240-01-613-2503
NSN 5996-01-329-3408
NSN 7035-01-528-7870
NSN 5930-00-621-7818
NSN 4140-00-316-5383
NSN 6685-01-483-1373
NSN 6105-01-195-6163
NSN 6320-01-067-0474